The Mets today tried another avenue to upgrade their bullpen by signing Al Reyes, who was recently waived by the Tampa Bay Rays, to a minor-league contract, The Post has learned.

Reyes was released by the Rays on Aug. 9 when he refused an assignment to the minor leagues. For Tampa Bay this season, Reyes was 2-2 with a 4.37 ERA, but was on the disabled list twice (in April; in June) with right-shoulder trouble.

In 2007, serving as the Rays’ primary closer, he had 26 saves.

But Tampa Bay felt that was not an area of strength and signed Troy Percival to a two-year contract as a free agent last offseason. The Rays hoped that Reyes could fit in as a quality setup man, but he was usurped by Dan Wheeler and Grant Balfour.

The Mets have been foraging for relief help wherever they can find it, understanding that top-end bullpen arms are not going to get through waivers.

Reyes, who has not pitched since Aug. 5, will be sent to Double-A Binghamton to work himself back into condition.

The 38-year-old is used to pitching at the end of games in the majors, something the Mets lack with Billy Wagner on the DL and possibly out for the rest of the season.

Reyes was involved in an altercation at a bar in April, during which he was shocked with a Taser. Charges were dropped last month.